.appDiv {
	padding: 40px;
	border: 1px solid red;
}

.active {
	background-color: red;
}

disabled {
	color: gray;
	border: medium solid gray;
}

.ng-valid[required] {
  border-left: 5px solid #42A948; /* green */
}

.ng-invalid {
  border-left: 5px solid #a94442; /* red */
}